NETGEAR, INC. XM128 ISDN Card Type ISDN Modem Chip Set Unidentified I/O Options 25-pin serial port, ISDN interface via RJ-45 connector (U or S/T), power analog telephone line out (2) ISDN Data Rate 128Kbps ISDN Modulation Protocol PPP, MLPPP, BACP, X.75, V.110, V.120 Error Correction/Compression V.42bis Data Bus External [Image] CONNECTIONS Function Label Function Label Power CN1 Telephone line 1 CN4 25-pin serial port CN2 Telephone line 2 CN5 ISDN interface (RJ-45) CN3 Power switch SW1 DIAGNOSTIC LED(S) LED Color Status Condition PWR Yellow On Power is on PWR Yellow Off Power is off DCH Green On ISDN link on D channel is active DCH Green Blinking D channel connection is being established DCH Green Off ISDN link on D channel is inactive B1 Green On Connection is established on B-channel 1 B1 Green Off Connection is broken on B-channel 1 B2 Green On Connection is established B-channel 2 B2 Green Off Connection is broken on B-channel 2 AA Green On Automatic answer mode is enabled AA Green Off Automatic answer mode is disabled CP Green On Data compression is active on B-channel CP Green Blinking Incoming call is ringing CP Green Off Data compression is not active on B-channel DTR Green On Terminal/computer ready for operation DTR Green Off Terminal/computer not ready for operation DSR Green On Modem is ready for operations DSR Green Off Modem is not ready for operations CTS Green On Modem ready to receive data from DTE CTS Green Off Modem is not ready to receive data from DTE RTS Green On Sending device is enabled RTS Green Off Sending device is disabled TD Green On DTE is transmitting data to the modem TD Green Off DTE is not ransmitting data to the modem RD Green On DTE is receiving data from the modem RD Green Off DTE is not receiving data from to the modem PH1 Green On Telephone line 1 is off-hook PH1 Green Off Telephone line 1 is on-hook PH2 Green On Telephone line 2 is off-hook PH2 Green Off Telephone line 2 is on-hook SUPPORTED COMMAND SET Basic AT Commands AT, ‘+++’, A/ A, E, L, M, Q, V &C, &F, &Z S Registers S0, S1, S2, S3, S4, S5, S7, S8, S10, S12, S25 Note: See MHI Help File for full command documentation. Proprietary AT Command Set ANALOG PHONE PORT Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects analog port during call answering Command Line Type &L0 Phone port 1 &L1 Phone port 2 B-CHANNEL DATA RATE Type: Configuration Format: AT [cmds] &En [cmds] Description: Selects data rate on B-channel Command Function &E0 64Kbps &E1 56Kbps BUNDLE SELECTION Type: Configuration Format: AT [cmds] &Jn [cmds] Description: Selects bundle options Command Jack Type ? &J0 Bundle connection is disabed &J1 Bundle connection is enabled in answer mode only &J2 Bundle connection is enabled in call mode only &J3 Bundle connection enabled in both directions CONFIGURATION PROFILES Type: Immediate Format: AT [cmds] &V [cmds] Description: Views profile settings Command Function &V0 View current active settings &V1 View profile 1 &V2 View profile 2 &V3 View profile 3 &V4 View profile 4 &V5 View factory default profiles &V6 Views settings on phone line 1 &V7 Views settings on phone line 2 DATA COMPRESSION Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Enables/disables V.42bis data compression in V.120/X.75 mode Command Function &K00 V.42bis disabled &K44 V.42bis enabled DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR high only while modem is handshaking or connected D-CHANNEL COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Pn [cmds] Description: Selects the communication protocol for D-channel calls Command Protocol ? P0 Northern Telecom proprietary selection P1 National ISDN 1 (1 SPID) P2 National ISDN 1 (2 SPID) P4 AT&T custom piont to point P5 AT&T custom piont to multipoint (1 SPID) P6 AT&T custom piont to multipoint (2 SPID) DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Command Function DL Re-dial last number D+ Second number string prefix. Used for bundling or MPPP calls DW Dialing resumed following dial tone detection D, Dialing paused for amount of time specified in S6 register DY0 Number type unknown DY1 International number DY2 National number DY3 Network specific number DY4 Subscriber number DY6 Abbreviated number DZ0 Type of subaddress, NSAP with AFI=$50, IA5 characters DZ2 Type of subaddress, user specified, IA5 characters DN0 Numbering plan unknown DN1 ISDN/Telephony numbering plan (CCITT E.164/E.163) DN3 Data numbering plan (CCITT X.121) DN8 National standard numbering plan DN9 Private numbering plan D/ Called pary subaddress delimiters DA Dials number on telephone line 1 DB Dials number on telephone line 2 DI Dials number for ISDN data call DN0=n User enters USA switches, first phone number DN1=n User enters USA switches, second phone number DSn Dial stored telephone number n. (n = 0-39) DIALING COMMANDS CALL TYPE Type: Configuration Format: AT [cmds] &On [cmds] Description: Selects the call type for conventional dialing commands Command Mode &O0 Analog phone line 2 &O1 ISDN mode &O2 Analog phone line 1 DTR SIGNAL Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Controls the behavior of the DTR signal. Command Function &D0 DTR forced high. &D1 Device enters command mode when DTR goes low. ? &D2 Device hangs up and returns to command mode on low DTR. &D3 Device resets on low DTR. FLOW CONTROL Type: Configuration Format: AT [cmds] &Hn [cmds] Description: Disables flow control options Command Function &H0 Flow control disabled ? &H3 RTS to CTS flow control disabled &H4 XON/XOFF flow control disabled HOOK CONTROL Type: Immediate Format: AT [cmds] Hn [cmds] Description: Selects whether the modem is on-hook or off-hook Command Function ? H0 Modem commanded to go on-hook (hang-up) H3 Phone line 1 commanded to go on-hook (hang-up) H4 Phone line 2 commanded to go on-hook (hang-up) ISDN COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for data calls Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols. B must be followed by two digits. Command Protocol B00 X.75 Transparent B01 X.75 T.70 B04 BTX (Data X-J) B10 V.110 follows DTE speed (async). V.110 determined by in-band negotiation (sync) B13 V.110 at 2400bps B14 V.110 at 4800bps B15 V.110 at 9600bps B16 V.110 at 14.4Kbps B17 V.110 at 19.2Kbps B18 V.110 at 38.4Kbps (sync only) B19 V.110 at 57.6Kbps (sync only) B20 V.120 B40 PPP async to sync conversion B41 SLIP async to sync conversion ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Note: The O command must be placed at the end of the command string. Command Function O0 On-line command mode with no retraining enabled REPEAT PREVIOUS COMMAND OR CALL Type: Immediate Format: A> Description: Repeats previous command once or last call up to 9 times. REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports product ID I1 Reports product information & ROM checksum I3 Reports link status I9 Reports Microsoft PnP code RING VOLUME Type: Configuration Format: AT [cmds] Nn [cmds] Description: Controls ring volume Command Function N0 Audio ring disabled N1 Low volume setting N2 Medium volume setting ? N3 Highest volume setting SELECT CALL PROGRESS RESULT CODES Type: Configuration Format: AT [cmds] Xn [cmds] Description: Enables selection of tone detection and associated result code format options Command Function X0 Busy and dial tone detection disabled; result codes 0 - 4 enabled. X1 Busy and dial tone detection disabled; result codes 0 - 5, 10 - 47 enabled. X2 Busy tone detection enabled, dial tone detection disabled; result codes 0 - 6, 10 - 47 enabled X3 Busy tone detection disabled, dial tone detection enabled; result codes 0 - 5, 7 - 47 enabled X4 Busy and dial tone detection enabled; result codes 0 - 47 enabled. X5 Busy and dial tone detection enabled; result codes 0 - 47 enabled. X6 Busy and dial tone detection enabled; result codes 0 - 18, 35, 38 - 47 enabled. X7 Busy and dial tone detection enabled; result codes 0 - 18, 35, 38 - 47 enabled. SOFT RESET Type: Immediate Format: AT [cmds] Zn [cmds] Description: Restores modem profiles previously saved in non-volatile RAM using the &W command. Command Function Z0 Restore setting 0 Z1 Restore setting 1 Z2 Restore setting 3 Z3 Restore setting 4 Z4 Restore factory default settings STORE ACTIVE PROFILE Type: Configuration Format: AT [cmds] &Wn [cmds] Description: Writes the values for the active profile into the non-volatile RAM Command Function &W0 Write the active profile to stored profile 0 &W1 Write the active profile to stored profile 1 &W2 Write the active profile to stored profile 2 &W3 Write the active profile to stored profile 3 TEST MODES Type: Immediate Format: AT [cmds] &Tn Description: Selects test options Command Function &T9 Initiates ISDN loopback test &T10 Initiates ISDN loopback with self diagnostic test Special Commands ADD-THRESHOLD Type: Configuration Format: AT [cmds] JAn [cmds] Range: 0-255 Default: 48 Unit: Kbps Description: Determines the add-threshold for MNPPP B-CHANNEL NUMBER Type: Configuration Format: AT [cmds] &Zin=(phone # & subaddress) Description: Assigns the phone numbers for various B-channel protocols. ZI? Displays B-channel phone numbers Command Protocol &ZI0 Assigns MSNs for X.75 &ZI1 Assigns MSNs for V.110 &ZI2 Assigns MSNs for V.120 &ZI3 Assigns MSNs for PPP, MPPP &ZI4 Assigns MSNs for ISDN data, protocal auto-detect &ZI6 Assigns the phone numbers for analog phone line 1 &ZI7 Assigns the phone numbers for analog phone line 2 BOD ADD-PERSIST (MIN) Type: Configuration Format: AT [cmds] KAMn [cmds] Range: 0-63 Default: 0 Unit: 1min Description: Determines the add-persist time interval for BOD BOD ADD-PERSIST Type: Configuration Format: AT [cmds] KAxn [cmds] Range (n): 0-63 Default: 0 Unit (x): S=1sec, M=1min Description: Determines the add-persist time interval for BOD BOD SUB-PERSIST Type: Configuration Format: AT [cmds] KSxn [cmds] Range (n): 0-63 Default: 0 Unit (x):: S=1sec, M=1min Description: Determines the sub-persist time interval for BOD CALL BUMPING Type: Configuration Format: AT [cmds] CEn [cmds] Description: Enables/disables call bumping Command Protocol CE0 Call bumping disabled CE1 Call bumping enabled CALL RESUME Type: Configuration Format: AT [cmds] CRn [cmds] Range: 0-3 Description: Resumes a previously suspended call; n is the call identifier Note: Command for use in Europe CALL SUSPEND Type: Configuration Format: AT [cmds] CSn [cmds] Range: 0-3 Description: Suspends a call; n is the call identifier Note: Command for use in Europe CALLBACK Type: Configuration Format: AT [cmds] *GCn [cmds] Description: Enables/disables callback function Command Function *GC1 Callback function disabled *GC2 Callback function enabled CALLBACK LOCATION Type: Configuration Format: AT [cmds] *HCn=x [cmds] Description: Assigns a storage location to callback phone number x Command Function *HC0 Callback number stored in location 0 *HC1 Callback number stored in location 1 *HC2 Callback number stored in location 2 *HC3 Callback number stored in location 3 *HC4 Callback number stored in location 4 CALLER ID Type: Immediate Format: AT [cmds] *T [cmds] Description: Recalls caller ID information CHARACTER LENGTH Type: Configuration Format: AT [cmds] *Hn [cmds] Description: Sets the character length; including start, stop, and parity bit Command Function *C0 10-bit character length *C1 11-bit character length *C2 9-bit character length *C3 8-bit character length CHARGE Type: Immediate Format: AT [cmds] CH? [cmds] Description: Displays accumulated charging unit of last call DATA PACKET SIZE Type: Configuration Format: AT [cmds] CLn [cmds] Range: 0-2048 Unit: 8 Description: Determines the maximum size of user data in a packet. CL? Queries current setting DIAL POINTER Type: Configuration Format: AT [cmds] *Dn [cmds] Range: 0-39 Default: 0 Unit: ASCII Description: Sets the default dial pionter for telephone directory location n FIRMWARE DOWNLOAD Type: Configuration Format: AT [cmds] UPX [cmds] Description: Downloads firmware to the flash EPROM using X-modem protocol LOOPBACK 4 Type: Configuration Format: AT [cmds] CPn [cmds] Description: Enables/disables loopback 4 Command Protocol CP0 Loopback 4 disabled CP1 Loopback 4 enabled PASSWORD TABLE Type: Configuration Format: AT [cmds] *Hn [cmds] Range: 0-39 Unit: ASCII Description: Modifies user password table at location n PREFIX NUMBER (INTERNATIONAL) Type: Configuration Format: AT [cmds] CIn [cmds] Description: Determines prefix number string to be added to the calling party number before indicating to the DTE international number type PREFIX NUMBER (NATIONAL) Type: Configuration Format: AT [cmds] CNn [cmds] Description: Determines prefix number string to be added to the calling party number before indicating to the DTE national number type SECURITY FUNCTIONS Type: Configuration Format: AT [cmds] *Gn [cmds] Description: Enables type 2 security, sets password check and callback security options Command Function *G3 Type 2 security enabled with password check *G4 Type 2 security enabled with password check and callback *G5 Type 2 security enabled with password check and callback; remote site enters the callback number SPID NUMBER Type: Configuration Format: AT [cmds] SPIDn=(SPID #) Unit: Unidentified Description: Sets the SPID number for USA switches Command Protocol SPID0 Sets SPID number 1 SPID1 Sets SPID number 2 SUB-THRESHOLD Type: Configuration Format: AT [cmds] JSn [cmds] Range: 0-255 Default: 32 Unit: Kbps Description: Determines the sub-threshold for MNPPP SUPERVISORY PASSWORD Type: Configuration Format: AT [cmds] *HS [cmds] Description: Modifies supervisory password. Dafault password is NETGEAR VIEW CALLBACK Type: Immediate Format: AT [cmds] *VC [cmds] Description: Views callback number table VIEW PASSWORD Type: Immediate Format: AT [cmds] *V [cmds] Description: Views password table WRITE NUMBER Type: Configuration Format: AT [cmds] &ZOn=(phone # & subaddress) Description: Writes phone number to be used as the calling party number. ZO? displays setting Command Protocol &ZOI Calling party number on ISDN interface &ZOA Calling party number on analog phone line 1 &ZOB Calling party number on analog phone line 2 S(status) -REGISTERS 1TR6 OUTGOING SERVICES Type: Register Format AT [cmds] S104x=n [cmds] Description: Determines outgoing service options. Command Function x=0 PHONE 2 service x=2 ISDN data service x=3 PHONE 1 service ADD-THRESHOLD FOR BOD Type: Register Format: AT [cmds] S126=n [cmds] Range: 0-255 Unit: Kbps Description: Determines the add-threshold for BOD B-CHANNEL 1 ACCUMULATED CHARGING UNIT (MSB) Type: Register Format: AT [cmds] S120=n [cmds] Range: Unidentified Unit: Unidentified Description: Determine the accumulated charging unit (MSB) for B-channel 1 B-CHANNEL 1 ACCUMULATED CHARGING UNIT(LSB) Type: Register Format: AT [cmds] S121=n [cmds] Range: Unidentified Unit: Unidentified Description: Determine the accumulated charging unit (LSB) for B-channel 1 B-CHANNEL 2 ACCUMULATED CHARGING UNIT (MSB) Type: Register Format: AT [cmds] S122=n [cmds] Range: Unidentified Unit: Unidentified Description: Determine the accumulated charging unit (MSB) for B-channel 2 B-CHANNEL 2 ACCUMULATED CHARGING UNIT(LSB) Type: Register Format: AT [cmds] S123=n [cmds] Range: Unidentified Unit: Unidentified Description: Determine the accumulated charging unit (LSB) for B-channel 2 B-CHANNEL BUNDLING PROTOCOL SELECTION Type: Register Format AT [cmds] S100=n [cmds] Description: Sets B-channel bundling protocol Command Function S100=0 MLP S100=1 Cfos (European models) BIT-MAPPED REGISTER S118 Format: AT [cmds] S118n [cmds] Range: 0-255 Description: Enables/disables dial-in call; selects default B-channle speed, incoming call acceptance, and bearer service Bit Value Function 0 0 Dial-in call enabled 1 Dial-in call disabled 1 0 Not used 2 0 64Kbps ISDN B-channel speed 1 56Kbps ISDN B-channel speed 3 0 Not used 4 0 3.1KHz bearer service priority on PHONE 2 1 Speech bearer service priority on PHONE 2 5 0 3.1KHz bearer service priority on PHONE 1 1 Speech bearer service priority on PHONE 1 6 0 Global call accepted 1 Global calls rejected if MSN is unmatched 7 0 Analog incoming calls enabled 1 analog icoming calls disabled BIT-MAPPED REGISTER S119 Format: AT [cmds] S119n [cmds] Range: 0-255 Description: Enables/disables callback function, DDI function, MSN matching; controls V.110 speed Bit Value Function 0 0 Callback function disabled 1 Callback function enabled 1 0 DDI point-to-point signaling disabled 1 DDI point-to-point signaling enabled 2 0 DDI point-to-multipoint signaling disabled 1 DDI point-to-multipoint signaling enabled 3 0 Inbound call ignored if MSN is unmatched 1 Inbound call accepted if MSN is unmatched 4 0 V.110 user rate set to 19.2Kbps if DTE speed is greater than 19.2Kbps 1 V.110 user rate set to 38.4Kbps if DTE speed is greater than 38.4Kbps 5 0 Normal MSN function enabled 1 Treats number assigned by &ZI=n as a subaddress, and matches it to the called party subaddress 7 0 Not used BIT-MAPPED REGISTER S125 Format: AT [cmds] S125n [cmds] Range: 0-255 Description: Controls sub-persist time interval Bit Value Function 0 0 Not used 1-6 ? Controls sub-persist time interval; further information not available 7 0 Sub-persist time interval in second unit 1 Sub-persist time interval in minute unit BIT-MAPPED REGISTER S15 Format AT [cmds] S23=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Determines parity, stop bits, character length, and power-up profile Bit Value Function 0,1 00 Parity even 01 Parity odd 10 Mark or No Parity 2 0 1stop bit 1 2 stop bits 4,3 00 10-bit character length 01 11-bit character length 10 9-bit character length 11 8-bit character length 7-5 00 Power on profile 1 01 Power on profile 2 10 Power on profile 3 11 Power on factory default profile BIT-MAPPED REGISTER S21 Format AT [cmds] S21=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Enables speaker, controls DTR/DCD/DSR signals & low DTR action Bit Value Function 0-2 00 Speaker always off 01 Speaker on until carrier is detected 10 Speaker always on 3 0 DSR forced high 1 DSR normal 4 0 DCD forced high 1 DCD normal 5 0 DCD forced high 1 DCD normal 6-7 00 DTR assumed on 01 DTR toggle causes default number to dial 10 Hang up and return to command mode on low DTR 11 Hang up and reset to profile 0 on low DTR BIT-MAPPED REGISTER S23 Format: AT [cmds] S23=n [cmds] Range: 0-255 Description: Select command echo, automode and extended result code format. Bit Value Function 0 0 Command echo enabled 1 Command echo disabled 1 0 Not used 2 00 Insertion not allowed during phone call 01 Insertion allowed during phone call 3-5 000 Busy and dial tone detection disabled; result codes 0 - 4 enabled. 001 Busy and dial tone detection disabled; result 010 codes 0 - 5, 10 - 47 enabled. 011 Busy tone detection enabled, dial tone detection disabled; result codes 0 - 6, 100 10 - 47 enabled. Busy tone detection disabled, dial tone detection enabled; result codes 0 - 5, 7 - 47 enabled. Busy and dial tone detection enabled; result codes 0 - 47 enabled. 6 0 Result codes displayed in numeric format 1 Result codes displayed in verbose format 7 0 Not used BIT-MAPPED REGISTER S24 Format: AT [cmds] S24=n [cmds] Range: 0-255 Description: Selects ring volume, speaker control (S21 bits 1-2) ignore function, and speaker volume Bit Value Function 0,1 00 Ring volume at minimum 01 Ring volume increased by 1 decimal 11 Ring volume increased by 2 decimals 2 0 Ignore S21 bits 1-2 speaker enable when phone 1 keypad is dialed 1 Do not ignore S21 bits 1-2 speaker enable when phone 1 keypad is dialed 3 0 Ignore S21 bits 1-2 speaker enable when phone 2 keypad is dialed 1 Do not ignore S21 bits 1-2 speaker enable when phone 2 keypad is dialed 5,4 0 Speaker volume control in increments of 16 6,7 0 Not used BIT-MAPPED REGISTER S35 Format: AT [cmds] S35=n [cmds] Range: 0-255 Description: Enables default dail, extended numeric result codes Bit Value Function 0-3 0 Not used 4 0 Do not dial default number when Data/Voice is pressed 1 Dials default number when Data/Voice is pressed 6-5 0 Not used 7 0 Extended numeric result codes in error correction mode are disabled 1 Extended numeric result codes in error correction mode are enabled BIT-MAPPED REGISTER S38 Format: AT [cmds] S38=n [cmds] Range: 0-255 Description: Enables repeat dialing, DCD toggle Bit Value Function 0 0 Repeatedly dials default number 1 Does not repeatedly dial default number 1 0 Not used 3 0 DCD toggle does not follow UNIX standard 1 DCD toggle follows UNIX standard. DCD high before connect message is sent, DCD off after last DCE response is sent 4-7 0 Not used BIT-MAPPED REGISTER S40 Format: AT [cmds] S40=n [cmds] Range: 0-255 Description: Enables result code display in answer mode Bit Value Function 0 0 Not used 1 0 Result code display in answer mode enabled 1 Result code display in answer mode disabled 2-7 0 Not used BIT-MAPPED REGISTER S41 Format: AT [cmds] S41=n [cmds] Range: 0-255 Description: Enables CCITT signals 140 & 141 on EIA-232D interface Bit Value Function 0-2 0 Not used 3 0 CCITT signals 140 & 141 on EIA-232D interface disabled 1 CCITT signals 140 & 141 on EIA-232D interface enabled 4-7 0 Not used BIT-MAPPED REGISTER S42 Format: AT [cmds] S42=n [cmds] Range: 0-255 Description: Controls escape sequence Data/Voice button, and result code Bit Value Function 0 0 Not used 3 0 Escape code sequence in answer mode enabled 1 Escape code sequence in answer mode disabled 4 0 Not used 5 0 Voice/Data button enabled 1 Voice/Data button disabled 6 0 Ringing result code enabled 1 Ringing result code disabled 7 0 Not used BIT-MAPPED REGISTER S44 Format: AT [cmds] S44=n [cmds] Range: 0-255 Description: Controls escape sequence Data/Voice button, and result code Bit Value Function 0 0 Not used 3 0 ATDSn does not initiate auto-dial if the stored numbers cinsecutively until 1 connection is made ATDSn does not initiates auto-dial if the stored numbers cinsecutively until connection is made 4 0 DSR does not follow DTR 1 DSR follows DTR 5-7 0 Not used BIT-MAPPED REGISTER S80 Format: AT [cmds] S80=n [cmds] Range: 0-255 Description: Controls sending of low-layer compatibility information Bit Value Function 0-3 0 Not used 4 0 Does not send low-layer compatibility information for PHONE 2 1 Send low-layer compatibility information for PHONE 2 5 0 Not used 6 0 Does not send low-layer compatibility information for ISDN call 1 Send low-layer compatibility informatin for ISDN call 7 0 Does not send low-layer compatibility information for PHONE 1 1 Send low-layer compatibility information for PHONE 1 BIT-MAPPED REGISTER S83 Format: AT [cmds] S83=n [cmds] Range: 0-255 Description: Controls loopback and dial commands Bit Value Function 0 0 Loopback 4 test disabled 1 Lopback 4 test enabled 2 0 ISDN without V.42bis enabled 1 ISDN with 42bis enabled 3 0 Not used 4-5 00 ATD, ATDP, and ATDT commands are mapped to ATDM 01 ATD, ATDP, and ATDT commands are mapped to ATDI 10 ATD, ATDP, and ATDT commands are mapped to ATDB 6-7 0 Not used BIT-MAPPED REGISTER S84 Format: AT [cmds] S84=n [cmds] Range: 0-255 Description: Controls S-register display format, caller ID, and phone priority Bit Value Function 0-2 0 Not used 3 0 S-register not displayed in hexidecimal format 1 S-register displayed in hexidecimal format 4 0 Indicates caller ID after first ring message 1 Caller ID disabled 5 0 PHONE 1 given call priority 1 PHONE 2 given call priority 6-7 0 Not used BIT-MAPPED REGISTER S85 Format: AT [cmds] S85n [cmds] Range: 0-255 Description: Controls DCA function, add-persist time interval Bit Value Function 0 0 DCA function enabled 1 DCA function disabled 1-6 ? Controls add-persist time interval; further information not available 7 0 Add-persist time interval in secondits 1 Add-persist time interval in minute unite BIT-MAPPED REGISTER S87 Format: AT [cmds] S87n [cmds] Range: 0-255 Description: Enables/disables bundle connection Bit Value Function 0-4 0 Not used 5,6 00 Bundle mode connection disabled 01 Bundle connection enabled in answer mode only 11 Bundle connection enabled in call mode only 10 Bundle connection enabled in both directions 7 0 Not used BIT-MAPPED REGISTER S89 Format: AT [cmds] S89n [cmds] Range: 0-255 Description: Enables/disables metering pulse Bit Value Function 0-4 0 Not used 5 0 Metering pulse disabled on PHONE 2 1 Metering pulse enabled on PHONE 2 6 0 Metering pulse disabled on PHONE 1 1 Metering pulse enabled on PHONE 1 7 0 Not used D-CHANNEL PROTOCOL SELECTION Type: Register Format AT [cmds] S86=n [cmds] Description: Sets the maximum allowable 56K downstream rate attempted during handshake process. Command Function S86=0 Northern telecom proprietary ISDN S86=1 National ISDN 1 S86=2 National ISDN 2 S86=3 Reserved S86=4 AT&T proprietary point-to-piont S86=5 AT&T proprietary point-to-multipoint S86=6 AT&T custom point-to-multipoint DTE LINE SPEED Type: Register Format AT [cmds] S20=n [cmds] Description: Sets the maximum allowable data exchange rate attempted during handshake process. Command Function S20=0 230.4Mbps S20=1 115.2Mbps S20=3 57.6Kbps S20=5 38.4bps S20=5 19.2bps S20=9 9600bps S20=11 4800bps S20=12 2400bps S20=13 19.2Kbps S20=14 460.8Mbps S20=15 921.6Mbps FIXED BAUD RATE Type: Register Format AT [cmds] S18=n [cmds] Description: Sets the fixed baud rate at idle Command Function S18=0 230.4Mbps S18=1 115.2Mbps S18=3 57.6Kbps S18=5 38.4bps S18=5 19.2bps S18=9 9600bps S18=11 4800bps S18=12 2400bps S18=13 19.2Kbps S18=14 460.8Mbps S18=15 921.6Mbps FLOW CONTROL Type: Register Format AT [cmds] S27 [cmds] Description: Displays the current flow control Value Meaning 0 Flow control disabled 3 RTS/CTS flow control enabled 4 XON/XOFF flow control enabled 5 Reserved FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S32=n [cmds] Range: 0-255 Unit: ASCII Description: Sets the character used to represent XOFF FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S31=n [cmds] Range: 0-255 Unit: ASCII Description: Sets the character used to represent XON HOOK FLASH DETECT TIME Type: Register Format: AT [cmds] S56=n [cmds] Range: 0-255 Unit: 10ms Description: Determines the hook flash detect time for analog adapter I-FIELD DATA LENGTH (LSB) Type: Register Format: AT [cmds] S115=n [cmds] Range: Unidentified Unit: ASCII Description: Sets I-field data length (LSB) I-FIELD DATA LENGTH (MSB) Type: Register Format: AT [cmds] S114=n [cmds] Range: Unidentified Unit: ASCII Description: Sets I-field data length (MSB) IP PACKET INTERVAL Type: Register Format: AT [cmds] S124=n [cmds] Range: 0-255 Unit: 1sec Description: Empties IP packet interval for PPP ISDN B-CHANNEL PROTOCOL Type: Register Format AT [cmds] S82=n [cmds] Description: Determines ISDN B channel protocol Command Function S82=60 V.120 at 64Kbps S82=61 V.120 at 56Kbps S82=62 X.75 at 64Kbps transparent S82=63 X.75 at 56Kbps transparent S82=64 X.75 at 64Kbps T.70 S82=65 X.75 at 56Kbps T.70 S82=72 V.110 at 64Kbps S82=73 V.110 at 56Kbps S82=74 PPP async to sync 64Kbps S82=75 PPP async to sync 56Kbps S82=76 SLIP to sync HDLC conversion at 64Kbps S82=77 SLIP to sync HDLC conversion at 56Kbps ISDN B-CHANNEL PROTOCOL (OUTGOING) Type: Register Format AT [cmds] S102=n [cmds] Description: Determines outgoing ISDN B-channel protocol Command Function S102=60 V.120 at 64Kbps S102=61 V.120 at 56Kbps S102=62 X.75 at 64Kbps transparent S102=63 X.75 at 56Kbps transparent S102=64 X.75 at 64Kbps T.70 S102=65 X.75 at 56Kbps T.70 S102=72 V.110 at 64Kbps S102=73 V.110 at 56Kbps S102=74 PPP async to sync 64Kbps S102=75 PPP async to sync 56Kbps S102=76 SLIP to sync HDLC conversion at 64Kbps S102=77 SLIP to sync HDLC conversion at 56Kbps PHONE NUMBER POINTER Type: Register Format AT [cmds] S29=n [cmds] Range: 0-39 Unit: Unidentified Description: Sets the default phone number pointer REGISTER S108 Type: Register Format AT [cmds] S108x=n [cmds] Description: Determines device mode, stop bits, parity, speed. Values in hexidecimal Command Function x=0 PHONE 2 service x=2 ISDN data service x=3 PHONE 1 service Value (hex) Function 00 Default values: 64kbps. 8 data bits, 1 stop bit, no parity, no high-layer compatibility 01 ISDN mode 02 Analog mode, fax group 3 03 Data mode 04 BTX mode, fax group 3,4 08 Even parity 10 2 stop bits 20 7 data bits 28 Teletex service 31 Teletex service 32 Information interworking for video 35 Teletex service 38 message handling systems 40 38.4Kbps async mode 41 OSI application A0, C0 V.110 sync mode at 1200bps A3, C3 2400bps A4, C4 4800bps A5, C5 9600bps A6, C6 14.4Kbps A7, C7 19.2Kbps A8 48.0Kbps A9 56.0Kbps AA 56.oKbps AF In-band negotiation SECURITY CALLBACK Type: Register Format: AT [cmds] S64=n [cmds] Range: 0-255 Unit: 1sec Description: Sets security callback timer SUB-THRESHOLD FOR BOD Type: Register Format: AT [cmds] S127=n [cmds] Range: 0-255 Unit: Kbps Description: Determines the sub-threshold for BOD TEST MODES Type: Register Format: AT [cmds] S16=n [cmds] Range: 0-125 Unit: Bit-mapped Description: Controls loopback tests, analog, digital Bit Value Function 0 0 Local analog loopback not in progress 1 Local analog loopback in progress 1 0 Not used 2 0 Local digital loopback not in progress 1 Local digital loopback in progress V.110 USER RATE Type: Register Format: AT [cmds] S117=n [cmds] Range: Unidentified Unit: Unidentified Description: Sets V.110 user rate